Package org.elasticsearch.cluster

Examples of org.elasticsearch.cluster.ClusterState.nodes()

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        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(5));
        assertThat(routingTable.shardsWithState(INITIALIZING).size(), equalTo(5));

        logger.info("start another node, make sure the primary is not relocated");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(5));
        assertThat(routingTable.shardsWithState(INITIALIZING).size(), equalTo(5));
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        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(5));

        logger.info("start another node, replica will start recovering form primary");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node2"))).build();
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(5));
        assertThat(routingTable.shardsWithState(INITIALIZING).size(), equalTo(5));
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        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(5));
        assertThat(routingTable.shardsWithState(INITIALIZING).size(), equalTo(5));

        logger.info("start another node, make sure the primary is not relocated");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(5));
        assertThat(routingTable.shardsWithState(INITIALIZING).size(), equalTo(5));
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        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo("node2"));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(1).state(), equalTo(UNASSIGNED));

        logger.info("Add another node and start the added replica");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo("node2"));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(1).state(), equalTo(UNASSIGNED));

        logger.info("Add another node and start the added replica");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
        }

        logger.info("Adding third node and reroute");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
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            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
        }

        logger.info("Adding third node and reroute");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
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        assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), equalTo("node1"));

        logger.info("Starting another node and making sure nothing changed");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node2"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(routingTable == prevRoutingTable, equalTo(true));
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        assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), equalTo("node1"));

        logger.info("Killing node1 where the shard is, checking the shard is relocated");

        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).remove("node1")).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(routingTable != prevRoutingTable, equalTo(true));
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        assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(INITIALIZING));
        assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), equalTo("node2"));

        logger.info("Start another node, make sure that things remain the same (shard is in node2 and initializing)");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        assertThat(routingTable == prevRoutingTable, equalTo(true));
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